import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import { post } from '@/api/client'
import { setAccessToken, clearAccessToken } from '@/utils/token'

interface OperatorInfo {
  operatorId: string
  name: string
  username: string
  permissions: string[]
  organizationId: string | null
}

const previewRolePermissions: Record<string, string[]> = {
  reviewer: ['review.view', 'user.view'],
  counselor: ['counseling.service.view', 'referral.manage'],
  station: ['service_location.view', 'service_appointment.view'],
  operator: ['review.view', 'user.view', 'organization.manage', 'permission.manage', 'activity.review_registration', 'risk.report.view', 'risk.report.process', 'analytics.view', 'banner.view', 'content.view', 'service_location.view', 'service_appointment.view', 'service_program.manage', 'counseling.service.view', 'referral.manage'],
}

export const useAuthStore = defineStore('auth', () => {
  const previewParams = import.meta.env.DEV ? new URLSearchParams(window.location.search) : null
  const previewRole = previewParams?.get('preview') || ''
  const previewOperator: OperatorInfo | null = previewRolePermissions[previewRole]
    ? { operatorId: 'ui-preview', name: '界面验收员', username: 'preview', permissions: previewRolePermissions[previewRole], organizationId: null }
    : null

  const token = ref<string>(previewOperator ? 'ui-preview-only' : '')
  const operator = ref<OperatorInfo | null>(previewOperator)
  let sessionInitialized = false

  const isLoggedIn = computed(() => !!token.value && !!operator.value)
  const permissions = computed(() => operator.value?.permissions || [])

  function applyAuthData(data: any) {
    token.value = data.accessToken || ''
    operator.value = {
      operatorId: data.operatorId,
      name: data.name,
      username: data.username,
      permissions: data.permissions || [],
      organizationId: data.organizationId ?? null,
    }
    // 同步内存态令牌（供 axios 拦截器注入 Authorization 头；生产同源场景 Cookie 也会自动携带）
    setAccessToken(token.value)
  }

  async function login(username: string, password: string) {
    const res: any = await post('/auth/operator/login', { username, password })
    if (res.success) {
      applyAuthData(res.data)
      return res.data
    }
    throw new Error(res.message || '登录失败')
  }

  /**
   * 静默恢复会话：页面刷新后内存态清空，凭 HttpOnly refresh Cookie（dy_op_rt）刷新令牌，
   * 无需用户重新登录。refresh token 不落地、不可被 JS 读取，抗 XSS。
   * 开发跨端口代理下 Cookie 不共享，刷新将失败并回落到登录页（符合预期）。
   */
  async function initializeSession(): Promise<boolean> {
    if (sessionInitialized) return isLoggedIn.value
    sessionInitialized = true
    if (token.value) return true
    try {
      const res: any = await post('/auth/operator/refresh', {})
      if (res.success) {
        applyAuthData(res.data)
        return true
      }
    } catch {
      // 未登录或 refresh 失效，交由路由守卫跳转登录页
    }
    return false
  }

  function logout() {
    // 尽力通知后端注销并清除 Cookie（best-effort）
    try {
      post('/auth/operator/logout', {}).catch(() => {})
    } catch {
      // ignore
    }
    token.value = ''
    operator.value = null
    clearAccessToken()
  }

  return { token, operator, isLoggedIn, permissions, login, logout, initializeSession }
})